An especially the large earthquake occurred on 27 March 1638.

A second earthquake occurred at 18:12, 16 minutes after the first.

An earthquake occurred in that region on May 27, 2006, and killed about 6,200 people.

Three other major earthquakes have occurred in 1804 and 1812.

The name of the event 311 came from 11 March, the day that the earthquake occurred.

The earthquake occurred at 22:00 local time on 11 November.

If the earthquake had occurred during school hours, the death toll would have been much higher.

"No matter how many earthquakes occur, there are a certain number of people around who won't change their behavior," he said.

The average earthquake occurs fairly deep within the earth, he said.

Ensure that you know what action to take should an earthquake occur.